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Unwanted Traffic: Denial of Service and Spam email

Unwanted Traffic: Denial of Service and Spam email

Spring 2009. CS 155. Unwanted Traffic: Denial of Service and Spam email. Dan Boneh. What is network DoS?. Goal: take out a large site with little computing work How: Amplification Small number of packets ? big effect Two types of amplification attacks: DoS bug:

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1.05k views • 87 slides
Unwanted Traffic: Denial of Service and Spam email

Unwanted Traffic: Denial of Service and Spam email

Spring 2009. CS 155. Unwanted Traffic: Denial of Service and Spam email. Dan Boneh. What is network DoS?. Goal: take out a large site with little computing work How: Amplification Small number of packets ? big effect Two types of amplification attacks: DoS bug:

★ ★ ★ ★ ★

875 views • 87 slides
Unwanted Traffic: Denial of Service and Spam email

Unwanted Traffic: Denial of Service and Spam email

Spring 2008. CS 155. Unwanted Traffic: Denial of Service and Spam email. What is network DoS?. Goal: take out a large site with little computing work How: Amplification Small number of packets ? big effect Two types of amplification attacks: DoS bug:

★ ★ ★ ★ ★

1.02k views • 85 slides
Unwanted Traffic: Denial of Service and Spam email

Unwanted Traffic: Denial of Service and Spam email

Spring 2008. CS 155. Unwanted Traffic: Denial of Service and Spam email. What is network DoS?. Goal: take out a large site with little computing work How: Amplification Small number of packets ? big effect Two types of amplification attacks: DoS bug:

★ ★ ★ ★ ★

884 views • 85 slides
Denial of Service Attacks

Denial of Service Attacks

Spring 2007. CS 155. Denial of Service Attacks. Dan Boneh. What is network DoS?. Goal: take out a large site with little computing work How: Amplification Small number of packets ? big effect Two types of amplification attacks: DoS bug:

★ ★ ★ ★ ★

586 views • 58 slides
Denial of Service Attacks

Denial of Service Attacks

Spring 2006. CS 155. Denial of Service Attacks. Dan Boneh. What is network DoS?. Goal: take out a large site with little computing work How: Amplification Small number of packets ? big effect Two types of amplification attacks: DoS bug:

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677 views • 54 slides
Denial of Service Attacks

Denial of Service Attacks

Denial of Service Attacks. Adapted from Dan Boneh, Stanford. What is network DoS?. Goal: take out a large site with little computing work How: Amplification Small number of packets ? big effect Two types of amplification attacks: DoS bug:

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664 views • 54 slides
Denial of Service Attacks

Denial of Service Attacks

Spring 2006. CS 155. Denial of Service Attacks. Dan Boneh. What is network DoS?. Goal: take out a large site with little computing work How: Amplification Small number of packets ? big effect Two types of amplification attacks: DoS bug:

★ ★ ★ ★ ★

561 views • 54 slides
Unwanted Traffic: Denial of Service Attacks

Unwanted Traffic: Denial of Service Attacks

CS 155. Unwanted Traffic: Denial of Service Attacks. Dan Boneh. What is network DoS?. Goal: take out a large site with little computing work How: Amplification Small number of packets ? big effect Two types of amplification attacks: DoS bug:

★ ★ ★ ★ ★

472 views • 47 slides
CSC 774 Advanced Network Security

CSC 774 Advanced Network Security

CSC 774 Advanced Network Security. Topic 2.2 Hash-Based Primitives. Outline. Primitives based on cryptographic hash functions One-way hash chain Merkle hash tree Client puzzles Bloom filters Based on a different type of hash functions. F. F. F. F. F. F. K 0. K 1. K 3. K 2. K 4.

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347 views • 20 slides

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